The San Jacinto man was allegedly driving over 100 mph before he crashed into a semi-truck on the 91 Freeway late Saturday evening. The truck veered into a wall, ejecting the driver from the cabin.

"Can't be drag racing here, dude," a witness says in the video. "Do I get off the freeway or do I stay here and enjoy the show?" ...

So, it's the whole street." He believes that they've seen an increase in traffic as drivers use the road to avoid the I-10 Freeway. He also thinks they're guided there by their GPS mapping systems.

The incident happened on the Southwest Freeway at Buffalo Speedway ... The district says the driver of the vehicle was taken to a hospital. According to the district, the bus was rear-ended ...