X17 XCLUSIVE - Lindsay Gets Locked Out Of Her House!!!

LiLo had a long night!

The 23-year-old actress got locked out of her house around 11pm Tuesday night so, naturally, she called the locksmith. A man arrived and tried to help her out...

But 15 minutes later, Lindsay and a friend went to the back door and managed to break in on their own. It seems that didn't really matter to the locksmith because he asked her for 300 bucks as payment! That's when Linds spoke to an X17 photog about what was going on:

"This guy, I called the locksmith because I locked my keys in the house, he's like asking me to pay him, but he didn't get me in! Can you tell him to leave? He tried to charge me 300 dollars, I paid these guys before. He didn't do his job!"

Ooh, boy! Poor, LiLo. Just wanted to go home and rest. Ironically, she headed over to Sam's house later that night - 3:30 am - with her face covered. Hmm, why after getting back into her house did she then decide to leave? Random!

Our photog tells us that "Lindsay's mood was very sad. She was waiting for the locksmith to help her but wound up getting in by herself, and didn't want to pay. She asked us for help and it seemed like she needed it. We felt bad for her."

Check out the craziness in the vid below! Do YOU think Linds should have paid?