Jasper White is one of those rare people who believes in ancient myths. He has just bought a new house in the city, but ever since he moved in, he has had trouble with cars and their owners. When he returns home at night, he always finds that someone has parked a car outside his gate. Because of this, he has not been able to get his own car into his garage even once. Jasper has put up 'No Parking' signs outside his gate, but these have not had any effect. Now he has put an ugly stone head over the gate. It is one of the ugliest faces I have ever seen. I asked him what it was and he told me that it was Medusa, the Gorgon. Jasper hopes that she will turn cars and their owners to stone. But none of them has been turned to stone yet!

这一句he always finds that someone has parked a car outside his gate. 中的has parked我能理解。

我只是想问一下专家老师，假设我们说成he always finds that someone PARKS a car outside his gate.用了一般现在时，含义的理解上有了怎么样的变化呢？

我是想体会出英语的时态差别含义，所以请教专家老师，谢谢！