LaJoie edged Ronnie Bassett Jr. to capture the checkered flag which ended in a yellow flag.
Pole sitter Travis Swaim finished third after leading for the majority of the race.
Tim George Jr. was fourth.
Clay Rogers, a three-time winner at the track, spun out through the infield while leading coming out of turn four with four laps remaining. Rogers recovered to finish in 13th place.
Kimmel II takes Street Stock checkered flag
Frank Kimmel II gained a bit of revenge in the Frank Kimmel Street Stock Nationals Saturday afternoon.
After finishing second in the Polar Bear 150 in Rockingham in November, Kimmel breezed to the victory in the 75-lap contest.
Curtis Peeples, Tony Conway, Willie Reyns and Jason Leatherwood rounded out the top five.