Each and every violation of this chapter shall be punishable by a fine not exceeding $1,000 or imprisonment for a period not to exceed 15 days, or both, for conviction of a first offense; for conviction of a second offense, both of which were committed within a period of five years, punishable by a fine of not less than $1,000 nor more than $2,000 or imprisonment not to exceed 15 days, or both; and upon conviction for a third or subsequent offense, all of which were committed within a period of five years, punishable by a fine of not less than $2,000 nor more than $3,000 or imprisonment for a period not to exceed 15 days, or both. Each week's continued violation shall constitute a separate additional violation.