However, experts believe the government-led crackdown could galvanise protests against the leftist government and upend a presidential election next year.
After this week's demonstrations, Maduro dismissed Capriles as "politically finished". At least 51 people were arrested nationwide in Saturday's protest clashes, 17 of whom were released, the NGO Criminal Justice Forum said. But the ombudsman's office blocked the move.
Discontent with Maduro's policies is at an all-time high as Venezuela battles a dramatic economic and humanitarian crisis.
Police fired tear gas at these demonstrators, and they fought back by throwing rocks, AFP reporters observed.
A woman walks away from tear gas during a rally in Caracas.
The recent opposition violence has resembled the infamous right-wing Guarimbas protests which blockaded streets in Febuary 2014 in an attempt to overthrow President Nicolas Maduro.
The move by the Supreme Court, which was stacked with Maduro-allies during the last session of the National Assembly before it fell in opposition hands, sparked fierce condemnation from activists, global powers and even supporters of President Maduro. Venezuela's President Nicolas Maduro insisted yesterday he was "eager" for delayed regional elections to go ahead, despite being criticized for resisting a national vote on removing him from power.
The court later reversed the rulings after an global outcry, but kept in place other measures limiting the assembly's powers.
Luisa Ortega, Venezuela's attorney general, called the ruling "a rupture" of the constitutional order.
On Friday, anti-Maduro demonstrators gathered there from dawn, wrapping red tape emblazed with the words "danger, do not enter" around the office in a surprise protest. Ortiz was a 19-year-old law student at a local university and had been planning to move to Colombia this summer, according to local news reports.
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Chile vowed to protect Enriquez, the head of the Christian social democratic party, whom Maduro's allies accused of plotting a coup.
While the court eventually reversed the ruling amid growing pressure, the decision galvanized the opposition and set off tense protests throughout the following week.
On Wednesday, similar clashes broke out in the western city of San Cristobal, the scene of deadly riots and looting a year ago, and in the city of Valencia.
The country has undergone three attempted military coups since 1992.
The next presidential election is scheduled for December 2018.
Regional governorship polls were postponed indefinitely in December and municipal ones are due later this year amid a chaotic political struggle.
Ordinary Venezuelans are suffering from shortages of food, medicine and basic goods along with a surge in violent crime.
The restiveness comes amid the country's deep humanitarian crisis sparked by an economic meltdown.
The state prosecutor's office confirmed on Friday that Mr Ortiz was shot in the hilly, low-income Carrizal area of capital Caracas, known for its state-provided housing, while he was at a protest.
Although he has retained the crucial support of the army so far, that could be changing, political analyst Luis Salamanca said.